Apparatus for the extraction of zinc.



M. Ni. PEARLMAN.

APPARATUS Fu THE Exmcnow or 2mg..

AFPLXCATIYON FILED MAR. 9| 1915- Patented Jan. 11, 1916.

attoz mu MARTIN M. PEARLMAN, OF CLRKSBURG, VJEST VIRGINIA..

APPRATUS FOB. THE EXTRACTIDN GF ZINC.

memes.

To all whom it may concern.'

Be it known that I,jlyIART1N M. PEARL- MAN, a citizen of the UnitedStates, residing at Clarksburg, in the county of Harrison and State ofVest Virginia, have invented certain new and useful yImprovements inApparatus for the Extraction of "Zinc, of

which the following isa specification.

This invention relates to apparatus for the extraction of zinc.

In the process ofj-distillation for the ex# traction of pure zinc aretort is operatively connected with a tilterer and condenser.Apparatusofy this character have been employed wherein the ilterer hasbeen located within the retort, ywhich is not practical, owing totheretort being subjected to such intense heat asto render it practically,if not wholly, impossible to remove the filterer in the presence of theheat and moreover, incident to the intense heat, there is a consequentexpansion and contraction of the retort, with relation to the ilterer,With the result that the ilterer sticks to the retort to such an extentthat it is a physical impossibility to lget it out of the retort.Furthermore, these iilterersl have to be taken out onceieverytwenty-four hours, and if, be-

cause of this frequent removal of the tilterers, the latter are made ofsuch size as t0,

prevent 'them from sticking to the retort incident to contraction andexpansion they willnot stand up properly and perform the work for whichthey are intended. YIn other Words, if the filters were m f e` smallenough so that they would not stic they would' not stand upl inthe-front of the Letort but would fall down and therefore co ld notproperly perform the work when it is' considered that the retorts aresubjected to heat anywhere from 1800 to 2000 degrees. ;When it isconsidered that these retorts are subjected to l such intense heat it isapparent that the lterers cannot be removed from the' retorts in thepresence of the heat and'to turni downA the fires for the purpose ofpermitting removal of the lterers results in the Waste of time, laborand expense. A

Infthe present instance, I lcombine the filtering and condensingchambers together, and am enabled to obtain satisfactory results withoutdisposing the filtering chamber within the retort, thereby overcomingpos-v sibility of the filtering chamber sticking to the retort andenabling the attendantto r- Specication of Letters Patent.

Application filed March 9, 1915. Serial No. 13,1%.

Patented Jaan. with .move said chamber from cooperative reittion -withthe retortJ while the latterY ing subjected `to heat'and 4Witfiout dii e1ng,but rather increasing the capacity etA the filtering chamber. j

l/Vith the above and'other. objects in View the invention consists inthe construction andv novel combination of parts' hereinafter fullydescribed, illustrated lin the accompanying drawings, andpointed out inthe claims appended hereto, it being understood lthat various changes inthe form, propon tion, size and minor details ot construction, withinthe scope of the'claims, may be re vsorted to without departing from thespirit vor sacrificing any of the advantagesef the invention. A

In the drawing z-Figure '.i is ascent-"1 View illustrating oneembodiment oi. vention. Fig. 2 is a similar view, illus" in ing anotherembodiment of my invention. Fig. 3 yis aview, partly in perspectiveelevation and partly'4 in section, illustrating the combined filteringand condensing chamber. Fig. 4 is a. view of one form of filteringchamber partly -in perspective and partly in section.

.Referring now more particularly to the accompanying drawings, thereference charn acter iO indicates a retort of any rsuitable characterwhich is mounted at its outer end in an opening ll of the wall 12 of thefurnace, and which, as usual, is disposed in any inclined plane with itsinner end mounted on a shoulder 13. The retort is located, over theheating means of the furnace, (not sholvvn).

In one embodiment of the present invention I form the filtering. andcondensing chambers together in an integral casing, as vshown in Fig. l,and in another instance they are formed separately. @therwise the twoforms of invention are substantially the same. Describing more minutelythe first embodiment of the invention, the ltering chamber 14 isseparated fromethe condensing-chamber l5 by means of an integral partition 16, provided with openings 17 which establish communicationbetween the cham bersfor the passage of zinc vapors into the condensingchamber'.

The walls of the Ifiltering chamber taper or converge and the closedminor ends of the same v is provided with an opening 18, through Whichzinc vapors issuing from the lilo retort pass'into the filterer" andthrough the filtering Vre,fractony or' other mass a and subsequently tothe condensing chamber.

The' condensing chamber ,l5 has its walls y tapering or conver ingoutwardly as shown, vthere being provi ed the lusual clay stopperedoutlet to withdraw/fthe metal which is arrested and separated in thefiltering chamber from the zinc vapors, the tapering or mclined wall ofthe filtering chamber' faciliy tating 'flow of the metal toward' saidoutlet.

)ln the second embodiment of the invention,-the filtering chambert 14 isformed separately from the condenslng chamber 15',

`as stated, andthe filtering chamber has its rear wall provided with anaperture 17 to establish communication between the chambers, which maybe connected together in any suitable manner. ln this second embodimentof the invention the filtering chamber has openings 18 to establishcommunication between it and the retort l0, and it also has an outlet 20as in the first form described, although slightly different with regardto the position thereof, due to the slightly different formation of theinclosing walls of the filtering chamber in this second l embodiment ascompared with the first.

in the use of my invention, the filtering chamberl is not inserted intothe' retort, but on the other hand, it is arranged outside of the retortand in such relation thereto as to be entirely away from the fire box orthe heat to which the retort is subjected. For

' instance, the minor end 'of the filtering chamber is inserted into theretort at the outer open end of latter, and owing to the tapering wallformation ofthe filtering chamber, it, engages the mouth or open end ofthe retort only at the extreme inner edge of 'the retort, as clearlyshown in the accompanydrawings, with the result that there is .iittleorno danger of the filtering chamber becoming stuck to the retort and. 1nany event', enabling' the attendant to remove the formed with or securedfirmly to the filtering, chamber, it may be effectively supported l withits smaller end in the outer open end of the retort.

vWhat is claimed .is:- l.. The combination with extraction of zincincluding means for the a retort having merece anl open outer end, ofA acombined filter and condenser consisting of a hollow `casing providedintermediate its ends with aztransyerse partition dividing the casinginto an inner filtering chamber and an outer condensing 'chamber, theinner end of the casing fitting within the open end of and engaging thewalls of the retort to form a closure for the same. 2,. The combinationwith means for A the extraction of zinc including a retort having anopen outer end, of a combined filter and condenser consisting of ahollow casing provided intermediate its ends with la transversepartition dividing the casing into an inner filtering chamber and anouter condensing chamber, the inner end of the casing being tapered andfitting within the open end of the retort and engagingA the walls oftheretort and forming a closure for the same. y

3. The combination with means for the extraction of zinc including-aretort having an open outer end, of a combined filter and condenserconsisting of an oppositely tapered casing provided at a pointintermediate' ofts ends with a transverse partition. dividing the casinginto an inner filtering chamber and an outer condensing chamber, theinner' end of the casing fitting within-the open end' .I

of the retort and engaging; the walls thereof and forming a closure forthe retort.- I

4. The combination with means for the extraction of zinc including aretort havingan open outer end, of, a combined filter and condenserconsisting of an oppositely tapered' casing provided at a pointintermediate of its ends with a transverse partition-dividf" ing thecasing into an inner filtering chamber and an/outer condensing chamber,the inner end of the casing. fitting within `the open end ofthe retortandfen'gaging the walls thereof and forming a closure for the retort,and the said filtering chamberv ha-ving a downwardly and outwardlyinclined bottom and provided at the lower end there-v of with an outlet.f i

5. The combination ,withfme'ans fo'r the extraction of zincy including aretort having an open outer end, of a combined filter and condenserconsisting of an oppositely-tapered casing provided at a pointintermediate of' its ends with a transverse partit-iondivid'- y ing thecasing into an inner -filteringcha'mc ber and an outer condensingchamberpthe `inner end of the casing fitting within the' open end of theretort land engaging thev walls thereof and forming a closure for theretort, and the said filtering chamber yhaving a downwardly andloutwardly' inclinedv bottom and provided at the lower end there-j'` ofwith an outlet, and the said partition bei' ing provided above theoutlet with an aper# ture forming a communication betweenthe" filteringand condensing chambers.v

6. The combination with means forthej extraction of zinc including aretort having van open end, of a. tapered filter having its minor endfitting Within the open end of the retort and. engaging the Wallsthereof and forming a closure for same, said filter being locatedSubstantially exteriorly of the retort and containing filtering materialand provided Wth a, zinc vapor outlet and a metal outlet located outsideof the retort.

HA RTI-N. M. PEAR-LMAN.

Witneses.

XVM. Y. K151i,

WV. A. S'row.

